I don't think anybody is assuming ballots would be reprinted, and certainly what is being described would be chaotic and unnerving. But what if a candidate just said, "I give up" at a late moment?
Fun speculation, perhaps not idle. I bet Bill and Hillary and many others have given this keen, critial analysis.
The twelfth amendment says that the electors will make a list including the names of the persons, and how many votes each person got. If that process is mangled, the election gets tossed to Congress.
Color me naive, if you will, but I trust that while such shenanigans can be gotten away with on a local or state level, possibly affecting national politics indirectly, they still cannot be successfully perpetrated on a national level, or simultaneously across a majority of the states.
If there is anyway to prove me wrong, I trust that Bill and Hitlary will do so, this election or next.